I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
filmy film filmi filum flamy flam flame fleam flume flambe folium fullam flambee flambeau
filmy filmi slimy palmy qualmy kilim hilum haulmy flamy filum film limby elmy blimy blimey balmy limy limey malmy plumy whilom
fil fail faille fila file fill fille fillo filly filo foil